Denver, Las Vegas, Phoenix, Puerto Plata, and More Seamlessly Connected as Frontier Airlines Expands with New Routes Strengthening US and Caribbean travel

Tuesday, March 4, 2025

Frontier Airlines expands with new low-cost routes, seamlessly connecting Denver, Las Vegas, Phoenix, Puerto Plata, and more, enhancing US and Caribbean travel.

Frontier Airlines, America’s ultra-low-cost carrier, is making significant strides in expanding its domestic and international footprint in 2025. The airline is set to launch four new routes in June, marking its first-ever operations from Seattle Paine Field International Airport (PAE) and Gregorio Luperón International Airport in Puerto Plata, Dominican Republic (POP). These additions reflect Frontier’s commitment to affordability and accessibility, ensuring travelers have more budget-friendly options to explore top destinations.

With new direct flights to Denver, Las Vegas, Phoenix, and Puerto Plata, Frontier continues to enhance its presence across the U.S. and the Caribbean. The airline is introducing competitive fares starting as low as $29, making travel more accessible than ever. Additionally, the airline’s latest customer-focused initiative, “The New Frontier,” aims to redefine the passenger experience with improved seating options, flexible policies, and an enhanced loyalty program.

“We are proud to continue our rapid network growth, providing affordable travel to more people in more places both domestically and internationally,” said Josh Flyr, vice president of network and operations design, Frontier Airlines. “From the natural beauty of the Pacific Northwest to the stunning tropical paradise of the Dominican Republic, to many destinations in between, there will be even more for budget-savvy consumers to explore this year with Frontier.”

Frontier Airlines’ New Routes in June 2025:

Frontier’s latest expansion includes multiple new routes that cater to travelers looking for both adventure and convenience.

New Service from Seattle Paine Field (PAE):

Frontier Airlines is expanding into Seattle Paine Field (PAE), offering low-cost, convenient alternatives to Seattle-Tacoma International Airport (SEA). Travelers in Western Washington can now access Frontier’s ultra-low fares directly from Everett.

Destination	Service Start Date	Frequency	Introductory Fare
Las Vegas (LAS)	June 2, 2025	3x/week	$29*
Denver (DEN)	June 2, 2025	3x/week	$39*
Phoenix (PHX)	June 2, 2025	3x/week	$29*

New Caribbean Route: Puerto Plata Joins the Frontier Network

Frontier is continuing its Caribbean expansion with nonstop service between San Juan, Puerto Rico (SJU) and Puerto Plata, Dominican Republic (POP).

Route	Service Start Date	Frequency	Introductory Fare
San Juan (SJU) – Puerto Plata (POP)**	June 19, 2025	2x/week	$79*

Additional Domestic Expansions:

Frontier is also reinforcing its commitment to affordable air travel with expanded service from major hubs:

Departure City	Destination	Service Start Date	Frequency	Introductory Fare
Phoenix (PHX)	Seattle Paine Field (PAE)	June 2, 2025	3x/week	$29*
Las Vegas (LAS)	Seattle Paine Field (PAE)	June 2, 2025	3x/week	$29*
Denver (DEN)	Seattle Paine Field (PAE)	June 2, 2025	3x/week	$39*

Frontier’s Commitment to Affordable and Enhanced Travel

As part of “The New Frontier” initiative, Frontier Airlines is rolling out passenger-first enhancements that improve flexibility, affordability, and comfort. Some of the key highlights include:

• No Change or Cancellation Fees – Book with confidence, as customers can modify their travel plans with ease.
• For Less Price Guarantee – Ensuring the lowest fares with upfront transparent pricing.
• UpFront Plus Seating – Extra legroom and guaranteed empty middle seats in the first two rows.
• Upcoming First Class Seating (Late 2025) – Comfort and luxury at budget-friendly rates.

Frontier is also America’s Greenest Airline, operating a modern, fuel-efficient fleet with a commitment to sustainability.

FRONTIER Miles: Rewards for Frequent Flyers

Frontier’s industry-leading frequent flyer program, FRONTIER Miles, is designed for maximum value with accelerated earning and flexible redemptions:

• Earn Miles Faster: Get 10X miles per dollar spent, with elite status members earning up to 20X miles.
• Family-Friendly Perks: Easily pool miles with family members.
• Elite Status Benefits: Priority boarding, free bags, and no change/cancel fees for Gold, Diamond, and Platinum members.
• More Upgrades in 2025: Free unlimited companion travel, seat upgrades, and miles redemption for baggage and seating.

Why These New Routes Matter

Frontier Airlines’ continued expansion in 2025 reflects the airline’s long-term commitment to affordable and convenient travel. With Seattle Paine Field’s first-ever Frontier routes and the addition of Puerto Plata to its Caribbean network, the airline is opening doors for travelers to explore new destinations without breaking the bank.

• Seattle-area travelers will now have a budget-friendly alternative to SEA.
• Puerto Rico and the Dominican Republic gain enhanced Caribbean connectivity.
• Travelers from Denver, Las Vegas, and Phoenix get more direct flight options.

Frontier remains dedicated to offering low-cost travel options while improving customer experience, making budget travel better than ever in 2025.

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